Rail anchor



C. G. ERICSON ANCHOR. AHILICAT LED JUNEZ, :92.

Moassz.

Patented Jun. w, 192.2.

new; .eiionoe.

Specification oi To all w ham it may concern Be it known that I, Ci-ninnes G. limo/son, resident of the city of Toronto. in the county of York, Province of Ontario Canada, a subject, of the King of. Greetv Britain, have invented certain new and useful improve inents in Rail Anchors, of which the follow ing is a specification.

This invention relates to devices for pin venting the longitudinal creeping of railwey rails and more particularly to that type in which a longitudinal Wedge-shaped is driven between one edge of a rail base and one end of a yoke member spanning the rail base, and my object is to devise an anchor of this type which will be cheap to COIlSilllCt end which will hold securely on the mil. in anchors of this type there always tendency for the wedge to loosen under the stresses to which the anchor is subjected and unless there is sufficient resiliency in the parts to take up any slight initial slack. the whole anchor comes loose soon as. such initial slack takes place. l aini therefore to obtain as much resiliency as poceible Where resiliency does not affect the immobility of the device longitudinally of the mil base when in service. It is also desirable to provide resilient frictional locking pressure tending to resist the slipping of the wedge which does notresolve itself into component forces of which one note in a direction parallel to the length oi. the wedge. I aim therefore to so design the anchor that e. 1e silicn't, locking friction is orodneed by wedge action transversely of the mil. 1

My invention is herein-liter more fully described and illustrated the accompanying drawings in which Fig. 1 is a. side elevation of my improved rail anchor in position on the base of e rail;

Fig. 2 a elevation of the same; and

Fig. is aplan view.

1n the drawings like numerals of reference indicate corresponding parts in the different figures.-

1 is a Wedge-shaped jaw member adapted to fit over one edge of the rail base. While this jaw inembei." might directly i tie, it is preferably provided with an integrail abutment member 2 extending" down-- wzn'dly adapted to engage the side of the lie. 3 is 21. yoke member formed of suitable resilient material. While it is not essential iliiz'li E few/11v. Jan. ill, lime.

I. Y. H hat is known. as spring SLQGl we employed for this member, it'is necessary to employ a steel having a fair measure of resiliency. This yoke member is provided with a hook l at one end adapted to engage one edge of a mil base, While the other end is provided with the hook 5 adapted to embrace the jaw member and o-vei'lmng the rail base as shown particularly in 1..

it is preferred that the yoke member edjacent ihe hook l should lie close againstthe linden side of the rail base, thence bendin outwardly to pass under the lower were 01 the jaw member. The back of the is. memher is .verflge shaped shown so that, when the jaw nienibeifitted bet-Ween the rail base and the hook 5 and the yoke driven into positiorn-the hook l: is tightened againstone edge of the rail base and the jaw member 1 against the other edge of the rail besc, thus effectively clamping the rail anchor as whole to the rail. hose.

l i hile the friction of the wedge-shaped jaw member with the. yoke member is at first suilicient to preven; any loosening of the la 'ater. it is found that. in the long run it is essential to supplement this frictional resistance to disengagement, and to give added resilient locking lriction 1 form the parts in the manner 1: will now describe. it Will be noted that the upper part 6 of the hook 5 has its under surface inclined inwardly and downwardly, and that the upper surface of the yew-shaped member is similarly shaped As the yoke member is driven into position over the jaw, there is a movement of the yoke member transversely of the rail base in one direction, While there is more or less movement of the jaw transversely of the rail base. in the og'iposite direction. This causesthe inclined surfaces referred to to ride on one another transversely oi the rail base so that ii e parts of the book 5 spread slightly and thus 0. marked spring pressure is exerted between the contacting surfaces. It will be noted thet this Wedge act-ion takes place in a direction at right angles to the wedging notion of the back of the jaw, so that any component of the force exerted tending to loosen the engagement does not add to the effect. of any 'Joniponentof him force exerted by the heck of the W dge tending to loosn i i on iern l Wedge.

it Will b i'iwytnclniel. conrially reduces any slip on one another. Further the inclined may be a malleable tasting,

of the jaw member are substantially parallel for the greater part of their length, so that any endwise motion of the wedge does not affect the extent to which the parts of the hook tiara spread, except as such movement may Vary the position of the yoke andv jaw member transversely of the rail base, It is, however, desirable to rhamfer one or both of the sides of the jaw member at its entering side as indicated particularly in F 25 to permit of the jaw member being entered between the parts of the hook and. to effect 'an'initial spreading action to produce trio tion between thenpper and lower engaging surfaces of the jaw member and hook It will be understood, of course, that it is not essential that the engaging surfaces of the member 5 of the hook and the jaw 1 be planes, as their exact form might be considerably Varied as long as a wedging effect is obtained tendingto spread the hook 5 as rela-- tivc movement of the two transversely of the rail base takes place.

' While I have referred to the action of the transverse wedging surface as causing a spreading of the hook, the result produced is a spring upward or" the member of the hook, a flexing oi the part of the yoke beneath the jaw member which tends to sprin it away from the jaw member and to oause the distant part to hug closely the u der side of the rail. A very considerable rt of the length of the yoke Is thus con-c lled in producing a resilient pressure oi the member5on thejaw afterthe yoke has been driven u ti htlv over the -aw b' strikiiw' c: u .5 :2

it alternately at opposite ends, the last action being to further drive 'tl'ie end distant from the jaw to cause the yoke to assume position substantially perpendicular to the inclined back of the jaw. The engaging sur faces of the back of jaw and the yoke thus are substantially parallel which mate tendency of the to position of the yoke gives ite clamping grip on. the rail and jaw which best enables it to resist displacement by pressure exerted against the abutment the jaw member.

It will be seen trom theabove descrip tion that l have devised a ra'i anchor which may be cheaply manufactured as the part1.

while the part 2 is produced by e bendingor' firming oporation frome suitable rolled section and no adap l at i slain: my invention is 1. A roll such 1* comprising a jaw member adapted to embrace one edge of a rail base and havingits back formed asa wedge; and a yo of spring metal adapted to span the rail base ing a hook at one end adapted to engage one edge of the rail base; end. a hoo ove rhan the rail base; the engaging surfaces 1 the jaw member and the upper pert of said hoolr sloping inwardly and ajlownwardly in thedirection of the rail base. i

rail anclmr constructed as set forth in claim 1 in which the jaw member is formed with its upper and lower surfaces substantially parallel for the greater part of their length and slightly chamtered at its rwzird end to facilitate its entry between the parts of the hook.

3. A rail anchor comprising e jaw member adap l to embrace one edge of a rail and havingits beck formed as a wedge; and a yoke of spring metal adapted to span the rail base having a hook at one end adapted to engage one edge of the rail base, and a hook embracing the jaw member and longing the rail base; the engaging w t the jaw member and the upper loll hook being shaped to spread 2n the hool; and jaw member .ransv ely'ot the rail base, the Lily a i l. the latter inwardly.

or comprising a jaw memmbrace one edge of a rail its book formed as a wedge and e yoke 0L 1 metal adaptedto span the hook at one end Q edge of the rail base, and a hoe l embracing are jaw memberand overhanging the rail base; the yoke being adaptel close to the under-sideof the rail "or o considerable port of its length, 'ng downwardly end then rail base to pass under the ew n er; the engaging surfaces of the j aw me send the n. .per part or said hook sloping 'rdly am downwardly in the di nio .i re rail base. I

.iloronto, Ont; this 26th day s om o. .ERICSON.

embracing the jaw member and. 

